Family name Contreras M (Contreras M 
) , in all the world, is a very rare surname. The last name Contreras M is habitual in Latin America and the Caribbean, particularly Colombia, where it is a very rare surname, Chile, where it is an extremely rare surname, and Mexico. Much less frequently, Contreras M is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Contreras M | United States, Colombia, Mexico, Chile |